linux-kernel - [21/50] ARM: pxa/cm-x300: fix V3020 RTC functionality

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Date:	Fri, 05 Aug 2011 17:03:39 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Igor Grinberg <grinberg@...pulab.co.il>,
	Eric Miao <eric.y.miao@...il.com>
Subject: [21/50] ARM: pxa/cm-x300: fix V3020 RTC functionality

2.6.33-longterm review patch.  If anyone has any objections, please let us know.

------------------

From: Igor Grinberg <grinberg@...pulab.co.il>

commit 6c7b3ea52e345ab614edb91d3f0e9f3bb3713871 upstream.

While in sleep mode the CS# and other V3020 RTC GPIOs must be driven
high, otherwise V3020 RTC fails to keep the right time in sleep mode.

Signed-off-by: Igor Grinberg <grinberg@...pulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 arch/arm/mach-pxa/cm-x300.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -154,10 +154,10 @@ static mfp_cfg_t cm_x3xx_mfp_cfg[] __ini
 	GPIO99_GPIO,			/* Ethernet IRQ */
 
 	/* RTC GPIOs */
-	GPIO95_GPIO,			/* RTC CS */
-	GPIO96_GPIO,			/* RTC WR */
-	GPIO97_GPIO,			/* RTC RD */
-	GPIO98_GPIO,			/* RTC IO */
+	GPIO95_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC CS */
+	GPIO96_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC WR */
+	GPIO97_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC RD */
+	GPIO98_GPIO,				/* RTC IO */
 
 	/* Standard I2C */
 	GPIO21_I2C_SCL,


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